revert(Store): store should fail synchronously

[timdeschryver]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/ngrx/platform/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Documentation has been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[x] Other... Please describe:

What is the current behavior?

Closes #1865

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

This commit partially reverts commit 60633b7

These changes were made in context to test runtime checks. @alex-okrushko pointed out that this change broke some of the google tests. This PR reverts the store subscription and rewrites the runtime checks.

cc @alex-okrushko